Eli5 So we need calories to survive. If there are 100 calories in a spoon of oil, how come we can’t survive on oil for emergencies?

Question

Eli5 So we need calories to survive. If there are 100 calories in a spoon of oil, how come we can’t survive on oil for emergencies?

In: 3554

Answer 1

Because your body isn’t a furnace

You need more than just calories to survive; you need raw material in the form of Proteins, Vitamins, Minerals, and Fats.

Now that being said, it takes a while to die from vitamin deficiencies. But it’s not possible to last for the long term without them..